To capture him, Thomas decides to follow him, even against the orders of Commander Sampson. The Movie Digimon Adventure tri. It's Kristy's birthday and Marcus must attend supplementary exams to save his grades. Marcus tries to defeat him alone, but Elecmon Digivolves to a black Garurumon, which even Sunflowmon and Gaogamon can't defeat. Marcus and Thomas are ordered to work together, but they aren't able to do so, which becomes clear during the pursuit of a group of Numemon.